Google Analytics is a service offered by google to find and compare searc patterns across specific regions, categories, time frames and properties. Thus to find top keyword searched on Google in India related to movies, just set the filter to India and movies and press search.
In a way you can set filter as per your requirement such as any country you want and any category like Autos & Vehicles, Beauty & Fitness,Books & Literature,Business & Industrial, Computers & Electronics, Finance, Food & Drink, Games, Hobbies & Leisure, Home & Garden, Internet & Telecom, Jobs & Education, People & Society, Pets & Animals, Real Estate, Reference, Science, Shopping, sports, Travel. Also you can set time filter to get results for a particular time period. Also this analytics search can be for images or entire web. Therefore you can get desired results for most searched keywords.
Now this can prove out to be really useful tool if you are about to set up your own website and looking for domain name. That is the one which is most searches, you domain name should be close to that. Also while writing the headings of post just take this into consideration to optimize your blog as per SEO. This is really a beneficial tool for increasing traffic to your website or blog.